arXiv 1504.027092015-04quant-ph

X射线腔QED装置中多核系综间的集体效应

Collective effects between multiple nuclear ensembles in an x-ray cavity-QED setup

K. P. Heeg, J. Evers

备注：: 18 pages, 6 figures
发表信息：: Phys. Rev. A 91, 063803 (2015)
DOI：: 10.1103/PhysRevA.91.063803

摘要：

最近的几个实验表明，嵌入薄膜腔中的穆斯堡尔核的设置为X射线量子光学提供了一个有抱负的平台。在这里，我们概括了我们早期开发的这个平台的理论模型[Phys. Rev. A 88，043828（2013）]。理论描述扩展到多核系综和腔中的多模。虽然单独的扩展不会导致新的定性功能，它们的组合产生了不同的核合奏和不同的光谱特征之间的可观测量的合作效果。Roehlsberger等人的相关实验[Nature 482，199（2012）]被成功建模，用半经典方法导出的标度被再现，并且用我们的量子力学描述获得了对设置的微观理解。

英文摘要：

The setting of Moessbauer nuclei embedded in thin-film cavities has facilitated an aspiring platform for x-ray quantum optics as shown in several recent experiments. Here, we generalize the theoretical model of this platform that we developed earlier [Phys. Rev. A 88, 043828 (2013)]. The theory description is extended to cover multiple nuclear ensembles and multiple modes in the cavity. While the extensions separately do not lead to qualitatively new features, their combination gives rise to cooperative effects between the different nuclear ensembles and distinct spectral signatures in the observables. A related experiment by Roehlsberger et al. [Nature 482, 199 (2012)] is successfully modeled, the scalings derived with semiclassical methods are reproduced, and a microscopic understanding of the setting is obtained with our quantum mechanical description.

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